Apache based web server runs Python-based software which gathers data from remote devices through custom HTTP-based protocol. Each time remote device wants to submit some data it composes HTTP query and posts data to the server using address A. A is being realized as SSL enabled virtual host (name based).

At the same physical web server, there is another virtual host which is development snapshot of the production one A - let's call it B. And I want to have each query that is being submitted to A to be duplicated also to B (just to have development database submitted with more realistic data), so basically:

From:

[Client] ---> A host

To:

[Client] ---> A host
\--> B host

So I need to duplicate and send same query to two virtual hosts located at same physical server. The reply from B host can be discarded, it just need to receive original query. The reply from A host should be (as normal scenario) sent to the originating client.